CARTEC SWIVEL EYBOLTS VS STANDARD EYEBOLTS
The most accurate bicycle tire inflation system on the market – in terms of measuring pressure while inflating Presta valves. The case-hardened steel Presta valve adapter is precision machined by EVT, and clicks into place with the “clip-type” Schrader chuck. The inflator uses a cast urethane washer for long-life with leak-free performance! Also serves as a basic blow gun with the presta adapter in place (Non O.S.H.A. approved-use at own risk). New & Improved for 2012 now features a McDaniels gauge. Gauge and Presta Adaptor not warranted against failure due to dropping. Buy the holster, however, and we’ve got you covered!
https://www.efficientvelo.com/tools/inflation.html#3in1