buy The Great-value Frame To Create An Effective Mini Green-houseoverwinter Crops & Protect Them Against Cold & Adverse Weatherpipes Made From Strong Medium-density Polyethylenecreate A Mini Poly Tunnel For Your Existing Raised Beds.the Pipe Frame is Pre-cut 25mm Medium-density Polyethylene Water Pipe; It Is Uv Stable & Will Last For Years.to Fit 4ft X 4ft Raised Bed.make A Poly Tunnel For Early Crops Of Salad Or More Delicate Plants Or Cover With Insect Netting To Protect Your Plants From Pests & British Weather.build A Gro-frame Directly On To A Raised Bed Or Create A Separate Hinged Frame For Extra Easy Access, Then Add Your Choice Of Covering, Each Set Comes With Complete Instructions & Is Easy To Construct.please Note: product Does Not Include Connector Kit, Covering, Wooden Frame Or Raised Bed