Sirchie ECT4 Twist Tube 4.75'' to 7.875'' - Set of 12

These tubes feature a telescopic length extension and are made from clear PVC. Notches on the internal tube allow for telescopic expansion to fit contained evidence. A twist-lock mechanism on the round tubes retains the expanded position while the hexagon end prevents rolling. The reusable tubes are rigid, durable, and resistant to oil and humidity.