HK Motorcycle Chromed Spike 1" Rubber Hand Grip With Contoured Throttle Boss For Yamaha Road Star Silverado MMLTD V Star 1100 Classic 650 Classic Custom Material: Durable PVC Gel rubber & Billet Aluminum Size: left(bar side) hole: 25mm (1");right(throttle side) hole: 25mm (1") , Overall Length: 14.5cm (5.78") , Weight: 500g Condition: 100% Brand , Package includes: 2 pcs of Spike Style Handlebar grips with throttle and assistor control Color: CHROMED (actual color maybe a little different due to photographic equipment & monitor setting) Material: Durable PVC Gel rubber & Billet Aluminum , Especially beneficial when wearing heavier gloves. Easy install , No installation guide