Spectrum Tubes - Sulphur, Length 26Cm, High-Quality Design For Greater Viewing Area, Effectively Demonstrate The Spectral Lines Of Pure Substances, For Use With Spectrum Tube Power Supply
Tube Rack Dispenser, 3-Tier, Dimensions: 12X5.5X16in, Nine compartments to organize and store tubes, Holds all sizes of tubes, up to 210 tubes, See-Thru for quick sorting by tube type, or cap, Constructed from durable 3/16 acrylic