THE BEST BIKE CUP HOLDER. PERIOD. This cup holder leaves all the others in the dust. The suspension design reduces spills and adjusts to a wide range of drinks. A super strong clamp with grippy rubber easily supports the weight of whatever you're carrying and is adjustable to mount on bikes of all types, scooters, wheelchairs, strollers, shower heads, boat railings... you get the idea. Guaranteed you'll never want to use another cup holder again. Shock absorbing design smooths out bumps and reduces spills Elastic cinch adjusts to hold drinks from 1" to 3.25" inches diameter. Plastic clamp fits bars, seat tubes, or anything up to 1.5". Alloy clamp optimized for bikes fits bars 22.2, 25.4, and 31.8mm 360 degree rotation for flat bars, curved bars, or vertical mounting. Optional (included) allen bolt can replace the quick release for extra security Works great for Bikes, Strollers , Boats, Wheelchairs, and more. Diamond Fabric is so good it must be woven from the yarn of magical outerspace silkworms. It looks like a million bucks, and the heavier fabric helps absorbing vibrations and resist unwanted movement. All HandleStash cup holders are now made with the signature diamond fabric. Made in the USA in beautiful Denver, Colorado! State and local sales tax applies to Colorado and Iowa residents. Need to carry larger drinks? Check out our stem bags designed to hold large bottles like a Nalgene, Yeti, or Hydroflask.