BioLink’s new FlipTop™ hinged lid boxes are made of recyclable cardboard, with a liquid resistant outer coating. The 81-place, 3 inch FlipTop™ box is suitable for tubes up to 13mm in diameter. The 100-place, 3 inch FlipTop™ box is suitable for tubes up to 12mm in diameter (accepts cryovials up to 4mL). These boxes are shipped fully assembled with dividers. Each box has drain slots on the bottom and numbered grid markings in almost every conceivable location (top, bottom, sides, etc). Also available in 2in. format with various color options.