Rack, 29.7 L x 12.7 W x 13.3 cm H, Polypropylene, 24 Places, Holds 26 to 30 mm Test Tubes, 3 x 8 Rows, 7 cm H Top Deck, Sturdy, Rigid, Steam Autoclavable at 121°C, Interlocking End Plates With Handles, For Secure Stacking When Loaded With Tubes Up to 10 cm Long