The EVOLVE70-DOLLY is designed to transport the EVOLVE 70 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.