24 PCS Aquarium Heater Clips Aquarium Fish Tank Suction Cups Clips 33mm Diameter Durable Pipe Tube Holder for Aquarium Fish Tank Accessories (Black)

Had good suction

Found them very tight to put on, in the end I slid them on as I was afraid to break the glass by forcing then over the heater.

all good 👍

Good item sticks really well to side off fish tank

Nice will be great lovely thanks