Metal fixing Delta Ring (1.299) & Small manual Springclip (1.003) + 40 pcs Add-On Elastic Silicone Wedges. Lot includes: 1 Delta Ring tines height 5mm (1.299), 1 Small Springclip (1.003), 40 pcs Add-On Elastic Silicone Wedges. Standard ring have a tines height 5mm. Double tines of Delta ring are suitable for installation of the fixing wedges and add-on wedges. Tines of fixing rings are inserted into the holes of the add-on wedges . Add-On Silicone Wedges manufactured from Special Silicone Rubber resistant up to 150 °C heat treatment. Dental Rings with Add-On Silicone Wedges designed for Installation different types of Matrices:Metal Matrices, Transparent Matrix, Contoured Matrices, Sectional Matrices