Wale offers a complete line of high quality Microcells (Square Capillary Tubing) in Borosilicate glass that can be drawn to various sizes. Microcells are precision square glass capillary tubes with flat, thin, parallel walls for viewing microscopic objects in two optical planes at right angles. Samples can be permanently retained for reference by fusing or cementing the open ends. Tolerances of -10% of inner dimensions are standard, but custom sizes with tighter tolerances are also available. Sold in vials with several pcs per vial. Length of pcs is either 50mm or 100mm each. Some items are stocked, but others will have a lead time. Contact us for availability.