Basic Model (CLOPPER-M / CLOPPER-P)- If you just slightly push the door supported by CLOPPER, the CLOPPER will stands upright automatically and the door will be closed. - Hole positions are the same with common door stoppers (compatibillity)- It can be installed with offered 3 screw pieces.Sticky Model (CLOPPER-MS / CLOPPER-PS)- If you just stlightly push the door supported by CLOPPER, the CLOPPER will stands upright autimatically and the door will be closed.- It can be installed with duplex sticker. (easy to install and no damage to doors)- The height of it can be adjusted even after it is installed. (adjustable)- Offer 1 additional screw pieces.