Durable Model Base - Dental former base molds made from silicone, durable enough for a long time use. High Quality Material - No chemical smell giving off. Safe for your health. Save Time - Dental former base molds can save a lot of time to make casts in the lab. Perfect for dental lab work. Easy to Clean - Glossy inner surface makes model separation easy. Built-in lingual contoured edge with space for tray handle clearance. Different Size Available - 6pcs (3 Upper+3 Lower) in different sizes (Small/Medium/Large), meet your different needs. Colour:Blue Material:Silica gel Package Contents: 6 * Dental Model Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.