Stainless steel construction with 10 rotating stainless skewers. This is the most versatile grill top bbq, it will fit most bbqs . The motor is located on the front and the motion is transferred to the gearbox located on the back, this prevents damage from the heat. The depth is easily adjustable to fit your bbq. Most compact multispit grill top bbq. The motor speed can be adjusted and can rotate your favorite meats and vegetables. Assembled dimensions are 26″ x 11″ retracted and up to 26″ width x 16.5″ extended depth. Bbq base in last two pics ,is not included, for illustration purposes only.