The EVOLVE90-DOLLY is designed to transport the EVOLVE 90 subwoofer. The dolly board features two butterfly twist latches which securely attach to the catch plates on the bottom of the subwoofer. The dolly features large robust caster wheels and a 138 lb (62.5 kg) total weight rating. This means the dolly supports the weight of an assembled EVOLVE 70 system, allowing for safe assembly and operating once moved in place and caster locks engaged. Plywood dolly board with four heavy-duty casters Secure, quick detach hardware and lockable rear casters Able to operate system without removal Can be used together with the EVOLVE 90 subwoofer slip cover Specs General Material: Plywood Color: Black Load Capacity Maximum load: 138 lb Maximum load: 62.50 kg Dimensions Height: 5.63 in Width: 21.26 in Depth: 27.28 in