Disposable test tubes, plastic test tubes, made of PE or PS. different size. Test Tubes: Round bottom, PS material: 13x75mm, 12X75mm, 12x60mm, 16x100mm, 15x100mm, 13x100ml, ... non- tidy500056 * 42 * 3412/11D20Test Tubes 12*75 PS straight500045 * 40 * 3012/11D21Test Tubes 12*75 in box 500033 * 41 * 4112/11 Test Tubes