3/8"" Square Drive Extension Bars. This set includes 3 extension bars with lengths of 3"", 5"", and 10"". They feature a 3/8"" square drive and are made of durable chrome vanadium steel. This product is backed by a lifetime guarantee. Orders placed before 2 pm are dispatched the same day (Monday-Friday). As official UK distributors for Blue Spot Tools, we offer their lifetime guarantee for confident purchasing. A VAT invoice is issued with every order. Online product registration is required to activate the lifetime guarantee. Visit our eBay shop for a full range of fasteners & fixings. All items are in stock and ready for dispatch. Same-day dispatch is available for orders placed before 2 pm (Monday-Friday). Payment via PayPal is preferred for protection. Orders paid for by postal orders and cheques will be dispatched once full payment has cleared. A VAT invoice will be provided.