Check the listing for details. CELLTREAT 10uL/10uL Extended Empty Rack, 20/cs, NS, #229060. Condition: New. Listed at 28.90 USD. Empty Pipette Tip RacksHinged lids are designed for easy one-handed opening, making it easier to access repeatedlyLids have a stacking feature for added stability and a secure locking tabLightweight lid design prevents tipping when openInterior support ribs prevent racks from warpingEmpty racks available with or without a wafer; with a wafer allows refill from bulk packed pipette tips, and without a wafer allows refill from pipette tip reload systemsBulk, non-sterile option available in unique self-standing, resealable bags SHIPPING NOTE: Orders placed by 12pm (EST) Monday - Friday will ship the same dayOrders placed after 12pm (EST) Monday - Friday will ship the next business dayOrders placed Saturday or Sunday will ship on the following Monday