TEST TUBE STAND 3 TIER (POLYCARBONATE) – PLASTX BRAND Posted on April 15, 2017April 26, 2017 by admin Product Code Description Pack Size(pc/pck) 150301 13MMX31HOLE 2 150302 16MMX31HOLE 2 150303 20MMX20HOLE 2 150304 25MMX18 HOLE 2 150305 13MMX62HOLE 2 150306 16MMX62HOLE 2 150307 20MMX40HOLE 2 150308 25MMX36 HOLE 2