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🛥️ Stay Coast Guard Ready with Style & Strength!
The Hardline Products Series 350 Registration Kit offers a premium, UV-coated marine vinyl decal set designed for maximum durability and compliance. Featuring a solid black outline and fuel-resistant finish, this 146-piece kit adheres securely to multiple boat surfaces, ensuring your registration numbers remain vibrant and inspection-ready season after season.













| ASIN | B001GXDWGO |
| Best Sellers Rank | #1,558 in Automotive ( See Top 100 in Automotive ) #1 in Powersports Decals, Magnets & Stickers |
| Brand | Hardline Products |
| Cartoon Character | Alphanumeric |
| Color | Black |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,477) |
| Date First Available | October 2, 2007 |
| Embellishment | Lead Free Inks |
| Exterior | Painted |
| Finish Type | High-Glossy |
| Global Trade Identification Number | 00063219435001, 00632194350014 |
| Indoor/Outdoor Usage | Outdoor |
| Is Discontinued By Manufacturer | No |
| Item Form | Sheet |
| Item Weight | 6.4 ounces |
| Item dimensions L x W x H | 11 x 4.75 x 1 inches |
| Item model number | BLK350EC |
| Manufacturer | Hardline Products |
| Manufacturer Part Number | BLK350EC |
| Model | Hardline Products BLK350EC |
| Number of Items | 1 |
| Number of Pieces | 149 |
| Pattern | Alpha-Numeric |
| Product Dimensions | 11 x 4.75 x 1 inches |
| Recommended Uses For Product | Yachts, Boat, Pontoon Boat, Center Console, Personal Watercraft, Sailboat, Skiff, Tenders, Canoe. |
| Reusability | Single Use |
| Set Name | Registration Numbers |
| Special Feature | Waterproof |
| Special Features | Waterproof |
| Style | 3” Font |
| Target Audience | unisex-adult |
| Theme | Alphabet |
| UPC | 632194700130 063219435001 787463413270 783847012893 632194350014 |
| Water Resistance Level | Waterproof |
R**.
Enough Letters
Nice letter kit. The only kit that had enough letters for my boat as it ends with “FF” All other kits only have 1 or 2 “F” and would have had to buy 2 kits
J**E
Perfect size and shape for my boat!
I'll start by saying surface preparation is key. I have an older boat that a previous owner had painted with unknown paint. Well the paint is chipping all over the place, so I used letters I knew I would not need to test their adhesion. Washed & dried the test area & the stickers struggled to stick, actually peeled very easy. Decided the failing painted surface was not the best to put the decals on, so I tried everything to get the paint off. That stuff is really tough apparently, ended up hitting it with 220 then 400, then 600 grit sandpaper. Then hit it with a buffer & the original surface shined like new! Guessing the previous owner that painted it was too lazy to shine it up & took the easier way out. So on the freshly sanded, polished & cleaned surface, the sticker hold VERY well. Be sure to tape off the area you are installing them on to get a straight line if it matters to you, or you may waste stickers trying to peel them to straighten out (ask me how I know)... The do not come off very easy at all once stuck to a good surface. Very happy with purchase, may buy more just to have spares in case any get damaged by shoes or dock scuffs.
C**.
Simple and very reliable boat letters. Amazing for the price.
I bought the black version for my old boat two years ago. I was truly impressed with how well they held up. They didn’t peel, crack, rip, nothing. They’re a thicker cut with a good adhesive. Two years later they were just as good as when I put them on. Got my new boats lettering installed today which was this white pack. I have no doubt this will last for a very long time. Highly recommend.
J**N
Decals are semi-transparent.
I ordered the red decals to put my registration number on my boat. The decals work fine and do the job, but they are more transparent than I expected. My boat is dark grey so the decals do not contrast as much as I thought they would, and as a result, the red stickers look orange-ish.
T**H
Gud 4 sines
I cannt spel two gud, so uzing thees where hard. Worked gud for my bidet kumala 2024 sine tho.
L**A
Garbage.
Garbage. Not sticky at all. Put them on my boat and the next day (boat was in garage all night) they were peeling off. Don’t waste your money.
L**N
Just right
Great product, great quality, easy to use
I**N
DONT RUSH!!
The numbers and letters are nicely cut. The most important step is to thoroughly clean the surface. Everybody’s idea of clean is different. I cleaned the surface with soap and water. Then i used acetone to totally degrease. In addition to the degreaser product sent in the kit. Prior to application i sprayed the boat hull with product sent to move the product into place. Use the plastic tool sent to get any wrinkles or bubbles out. Product is well adhered to the boat. Dont rush the process.
L**U
It fit very well my boat trailer, and looks very nice love it!
C**R
Used this to replace peeling letters on our boat. They adhered well and are holding up great after a year.
H**O
Easy to apply. Good quality on initial installation. Will see how they work out after a couple of years on the water.
J**M
I was looking for high contrast but they are thin enough that the base colour came through and in my case turned the letters from bright red to a dull orangey
M**4
Came perfectly on time and worked perfectly to update registration on my boat
Trustpilot
2 weeks ago
2 weeks ago