This Griptape application kit includes a BLACK DIAMOND grip roller and BLACK DIAMOND griptape file. Use the Black Diamond Grip Tape Roller tool to smooth out your grip and ensure maximum bond to the board. Roll out those air-bubbles with this ergonomic, efficient tool (and save the skin on your hands, too). The soft polyurethane handle makes for a super comfortable grip while the alloy body ensures this tool can stand up to the highest pressures that you can apply. For good measure, we threw a 55mm skateboard wheel on there so if you ever blow out a bearing at the spot, you’ve got two spares built right into this tool! The Black Diamond griptape file ensures you get the job done right the first time without those nasty jagged edges. Gripping your board is the hardest part of building a skateboard. Make it easier with this kit!