Supurr-Flex(R) clothes dryer transition duct ; Hooker-Upper(R) protector ; Easily attaches 1 end of duct to dryer & other end to dryer vent ; No clamps, tools or tape needed ; Protects duct from being smashed behind dryer, which can lead to unsafe dryer operation ; Flexible, easy to install ; 8ft run of duct is UL 2158A ; Includes 1 connector & 8ft flex hose;