Adjustable & Stable Alligator Clamp- bike cup holder with a 360??adjustable high-quality aluminum mounting clamps, clamp firmly on the rails of your boats and side tables, have an impressive grip that won’t slip, securely hold your drinks and cups. Easy to install and use. With a skid-proof pad, this kayak cup holder will be more stable and protect the rails. Stable without sliding for 0.6-1.75″ rails and vertical bar. Durable Motorcycle Cup Can Holder- Be Made of 600D oxford fabric instead of other stainless steel or plastic holder, durable and washable. Don??t worry about rusty and broken after 2-3 months. With Tightening Drawstring- adjustable drawstring design for almost kinds of cups and water bottles. Perfectly hold your 12-24oz cans of beer, large cups, coffee mug, soft drinks, stainless steel bottle. 2 Separated Mesh Pockets- Designed for holding your phone, mp3, key, sunglasses, card fishing bait etc. Help you storage the little things. With Bottom Drain- With a little