PONY BOTTLE HOLDER for 5.25" Diameter -Pair 
XS Scuba Pony Bottle Holder Kit AC265:
Simple, Non-Complicated & Economic Solution for Mounting Pony Bottle
Secure Pony Bottle to Main Cylinder
Pair of 2" (5.1 cm) Nylon Straps with Non-Slip Tank Pads
Larger Loops Designed to Fit 7.25" (18.4 cm) Diameter Primary Cylinder
Small Loops Designed to Fit 5.25" (13.34 cm) Diameter Pony Cylinders
Works with Aluminum 30 and 40 cu. ft. Pony Cylinders
Easy to Install
Dual Band Design: Provides Great Stability & Retention of Pony Bottle
Hook & Loop Fasteners for Quick/Easy Mounting