PRODUCTS / SHARKCAGE / ACCESSORIES / PRODUCT SPECIFIC Accessories to expand STACK RACK XXL+ capabilities. MEDIUM WST INSERT (Width / Depth / Height) 65 '' / 37 '' / 2'' 164cm / 95cm / 6cm This description will be used on category pages for the productSpecial rack for storing and securing wheels in the TACTICAL LOCKER MEDIUM. STACK RACK XXL Grid Back Wall Optional additional grid wall,which can be attached to the front of STACK RACK XXL+. Assemble without tools. WST LARGE Extender (Width / Depth / Height) 4 '' / 45 '' / 33'' 9cm / 113cm / 83cm Extender that can be added to the WST I to increase the height and accommodate the largest wheels. metric / US (imperial)