A stackable test tube rack that can be customized to your needs! Test tubes up to 16mm in diameter all fit. Tier 1 = 7 tubesTier 2 = 14 tubesTier 3 = 21 tubesTier 4 = 28 tubesTier 5 = 35 tubesStackable Test Tube Rack€4.95PriceTiersSelectColorQuantityAdd to Cart