- Marking for fast identification and aligning. - Click-sound in close position. - Very low profile. - 022 Slot with ultra-low friction and active with wire height .025. - Approved mechanical locking fishgrate base for easy bonding and debonding. - Additional ligatures and attachments can be used at any time. - Excellent and easy-moving slide mechanics, prevented to be pulled out. - Open with tool, close with fingers or tool. 1 Pack Contains : - 5x5 Upper And Lower With No Hooks . **For further product information, please contact Chat Support**