Size: 12 inch (Pack of 1) Material Plastic, Metal Color White Brand Toddleroo by North States Item Weight 3.7 Pounds Mounting Type Pressure mount About this item KEEPING TODDLERS SAFE SINCE 1953: Worry-Free Safety! This extension (Model 5107) easily adds 12? to the Toddleroo by North States ?Essential Walk Thru Gate? (ASIN B01MUEGID5, Item: 5108S - sold separately) EASY TO INSTALL: Just insert the extension ends into the gate (guide pins included) and pressure mount as directed; Can be used with 6? extensions (Model 5106; sold separately), and 2.75? extensions (two included with the gate) GREAT FOR MOST OPENINGS: A maximum of 3 extensions can be used for a gate to fit spaces 29.8? up to 60.1?; See extension guide below to customize the perfect fit for your space! SAVE TIME BUY THE RIGHT EXTENSION: Extension ONLY works with the ?North States Essential Walk Thru Gate?; Will not work with any other gates; Unsure? Post a question in the Q A below and the manufacturer will respond