Features: ▶ Application: Compatible with most of the engraving machine in the market such as ATOMSTACK, SCULPFUN,NEJE,XTOOL,ORTUR. This machine can work directly with the engraver on materials with a cylindrical shape. According to the cable attachment, the machine can work with mainly engrave on material with a cylindrical shape. ▶ The Rollers can be set at 4 different distances, 4-138mm adjustable range, easy to be adjusted without the use of wrench screwdriver. Support 195mm cylinder length objects. ▶ Perfect for Engraving Cylindrical Objects - Place your cylindrical work stably on the rotary roller and connect it with the engraver. It's suitable for engraving cans, wine bottles, cups, curved crafts, and more. ▶ The roller shaft is all metal structure, one-piece rubber roller, the hardness reaches 60A, the friction force is stronger, and the engraving process is more stable. ▶ Easy to operate: no need to install, connect the rotary roller with the engraver as soon as out of the box. Specification: Model: ACMER M2 Main Material: Metal, Rubber Package Size: 295x190x80mm Package Weight:1200g Packing List: 1 x Rotary Roller Kit