Seachem Glass U Tube Size:20mm The ball has a good

The ball has a good bounce and as an added delight

Completely edible – encourages healthy foraging and chewing behaviours

there’s even a branch made with natural silvervine

you can’t overdo it

Specially shaped holes have unique silicon flaps that hold KONGs securely upright for mess-free stuffing

Seachem Glass U Tube Size:20mm The ball has a goodOverview The 20 mm glass U Tube allows you to easily run airline (preferably silicone) for CO2 or for general air supply over the rim of the aquarium without bending or creasing. Made of strong clear glass, which minimizes visibility of tubing. Compatible with 6 mm (1 4") Standard Airline Tubing.