Rubber Dam 6x6 Blue 36/Bx by Coltene SKU 987-1681AA $12.99 - $23.99 $12.99 Medium - $12.99 Heavy - $23.99 Medium Heavy Thickness 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 6" x 6" Medium Blue Rubber Dental Dam, Package of 36.