A popular general purpose linerless sealing mechanism which can be used on most all bottles. Russell designed and produced the first linerless pocket knife with all-plastic handles in 1970. The Alusil aluminium alloy is commonly used to make linerless aluminium alloy engine blocks. A recent innovation enabled by self-adhesive technology is the linerless coil stamp. Linerless closures often use a deformable plastic rim or structure to maintain the seal.