RDVX Ultra Coarse Longboard Grip Tape (Black Grip 4 Sheets 11x10'') Includes 4 Sheets RDVX Ultra Coarse Grip and 1x RDVX Radial Inplant to add a Radial Drop to your Longboard concave. Radial S2 Inplant locks you in for slides just like a traditional molded radial drop would, upgrade any longboard. Ultra Coarse Grit Surface to keep you locked in during Sliding / Downhill Reinforced Surface for Extra Long Life, 1 year Grit Life Guarantee Proprietary Adhesive Cures with moisture in the air to bond better with your Board Surface