For Sur-Ron Storm Bee Gripper Ribbed Seat CoverFit for Surron Storm Bee. The design offers maximum traction but still let you slide around on the seat when needed. Seat top features a pleated ribbed design sections for maximum control and feel in any seated position. Additional grip materal on side panels provide much needed traction while stangding and gripping the bike with your knees. All seams are double stitched for added durability and water resistance. Easy to install. No cutting, sanding