The Spider Extra Spider Monkey Tabs contains 3 rectangular tabs with small disc-like protrusions that slide and lock into the optional Spider Monkey base unit. The tabs feature 3M adhesive on both sides for secure attachment to your flash, light meter, battery pack or other accessory, and to the attached touch-fastener strip, which wraps around your device to ensure an extra-strong hold. To release, push your gear against the base and lift.