Tubes are made of borosilicate glass

Holders are made of stainless steel. Bottom tray catches any reclaimable pellet fines. Holder is designed to hang over lip of cage.

Tubes and holders are autoclavable and cagewasher safe.

They are an easy, accurate and convenient method of measuring food intake. The narrow opening allows access to pellet without removal from the tube. Mouse tubes hold eight 1 g pellets. Rat tubes hold eleven 1 g pellets