Hose clamps to suit 8mm or 5/16 rubber Hose, often used for overflow lines, returns, breathers etc.
The O.D. (outside diameter) of hose should be between 12.5mm to a maximum of 15.5mm.
Can clamp any type of soft hose that fits within the measurements above, but not recommended for high pressure systems.
Quick release with a pair of pliers.
Sold in a pair (shown in pics).