Check the listing for details. Bicycle Trainer Riser Ring Adjustable Swiveling Base Non Slip Durable Pvc. Color: Black, Condition: New. Listed at 30.59 USD. USA Deals Direct USA Deals Direct › Trainers & Rollers › Bicycle Trainer Riser Ring Adjustable Swiveling Base Non Slip Durable PVC Bicycle Trainer Riser Ring Adjustable Swiveling Base Non Slip Durable PVC Buy Now Durable Pvc ConstructionNon-Slip Base For StabilityFits Tires Up To 2.25"Package Dimensions: 15" ( H ) x 20" ( L ) x 15" ( W ) The Kinetic Turntable Riser Ring is an absolute necessity for anyone riding a Rock and Roll Trainer. Features a swiveling base that allows the front wheel to move freely and helps a rider perfect their technique. With four available heights, the riser ring is designed to meet the needs of riders who want a level bike when they train or riders who want to simulate riding uphill on their trainer. Shipping We offer FREE fast shipping on all orders! Most items will be packaged within 1 or 2 days. We ship every day including Saturday and Sunday. Returns We accept returns within 30 days of receipt of the item. Contact us Customer satisfaction is very important to us. If you have any problems with your order please message us first and we will do our best to make you satisfied! We usually respond within 24-48 hours. Please visit our eBay store for other Trainers & Rollers items for sale. Thank you for shopping in our store!