A two-arm dolly attachment is disclosed herein. The two-arm dolly attachment includes a first arm, a second arm, a first substantially straight first arm and a second substantially straight second arm. The first arm includes a width adjusting opening. The second arm includes multiple securing member openings. Each aforementioned arm is mounted through securing members which are received by butterfly nuts. The first arm mounts to the second arm. The first substantially straight arm mounts to the first arm. The second substantially straight arm mounts to the second arm. The first and second substantially straight arm mount to one another. The butterfly nuts allow the two-arm dolly attachment to assemble and dissemble for storage. There are two pairs of clasping members which are adjustable to allow the two-arm dolly attachment to attach to dollies of various sizes. The width of the two-arm dolly attachment is adjusted.