Erkoloc-pro BLU - 10pcs ERKODENT Blue transparent 125 x 125 mm 3.00 mm Sandwich plates hard/soft with a blue coloured soft layer. For comfortable occlusal, Michigan, miniplast splints and retainers. The blue colouration prevents discolourations and enables a better differentiation between upper and lower splints in anti-snoring devices like in the Silensor-sl. The hard layer is made from polyethylene terephthalate glycol (PETG) and can be built up with self-curing resin. The soft layer is made from thermoplastic polyurethane (TPU). With separating foil.