21" (530mm) open, 12" (300mm) closed. Swivelling mount at one end with 8mm holes. 6.5mm hole in sliding section.
Single hand operation - Lift to latch, lift again to release. Plated steel. Good quality, smooth action.
If your bonnet or boot panel is fairly stiff (e.g. Cobra boot) you may need only one stay but floppy or flexible panels (e.g. Cobra bonnet) may require one on each side.
BONNET & BOOT LID STAY LARGE #BNSTY