Nylon Anchors are pre-assembled through fixing, a light duty nail expanding for solid masonry and hollow wall constructions. The design of the expansion nail used in the Nylon Anchor is such that it can be removed if need be. 
It has a small slot across the head of the nail to accommodate a small screwdriver blade, when turned anti-clockwise by the screwdriver the nail will be wound part way back out of the nylon sleeve. This enables a claw hammer to be hooked under the protruding head of the nail and pulled out of the nylon sleeve. Having withdrawn the expansion nail fully you can now pry out the nylon anchor body.

Nylon Anchors are pre-assembled through fixing, a light duty nail expanding for solid masonry and hollow wall constructions. The design of the expansion nail used in the Nylon Anchor is such that it can be removed if need be. 
It has a small slot across the head of the nail to accommodate a small screwdriver blade, when turned anti-clockwise by the screwdriver the nail will be wound part way back out of the nylon sleeve. This enables a claw hammer to be hooked under the protruding head of the nail and pulled out of the nylon sleeve. Having withdrawn the expansion nail fully you can now pry out the nylon anchor body.