OTC's HD Sliding Tire Spoon features a Convex Slip Head, Grip Grooves, and an Inner slide bar that provides hammer action - greatly reducing the effort required to insert and remove the spoon Unique 'Convex Slip Head' curved design dramatically reduces pinching and allows the spoon to slide easily into and out of the tire bead Spoon head also features a 'spoon bump' which serves to limit spoon insertion depth, ensuring the spoon is seated properly before leverage is applied Grip Grooves' grip the wheel rim better than smooth spoons, eliminating slippage on the rim for improved function while limiting the depth of the spoon to reduce pinching on tube tire applications Forged 38 inch long tool extends to 52 inches, with slide hammer bar at full extension, for extra leverage; large 3/4 inch diameter shank provides strength and rigidity