MVG1006 Features: * Quick release wheels * Easily assembles and folds down for storage * Mesh zippered screen front and amp; back * Easy to attach and de-attach * Back zipper enables easy entry & exit * Front wheel can swivel, or be locked straight - makes it steady at high speeds. * Roof opening with sun screen * Cover: 600D Polyester with fine mesh windows and transparent PVC front cover * Two section roof-front opening designed for optimal riding pleasure for different breeds * Stable and cleanable anti-slip floor * Medium supports up to 75 lbs. * Medium pet compartment: 28" x 19" x 19" * Medium length of tow bar: 24" * Medium rear wheel size: 20" * Large supports up to 90 lbs. * Large pet compartment: 31.5" x 22.8" x 23.6" * Large length of tow bar: 30" * Large rear wheel size: 20" Includes: * Stroller kit included to convert the bike trailer to a stroller * One bicycle hitch included Dimensions: * Medium pet weight: 75 lbs. * Medium net weight: 33 lbs. * Medium dimension: 38"" H x 51"" W x 25"" D * Large maximum pet weight: 90 lbs. * Large net weight: 37.5 lbs. * Large dimensions: 43"" H x 59"" W x 28"" D