Transform Our Standard Metal Raised Beds Into An Efficient Mini-greenhouse With The Minimum Of Effort And Prolong Your Growing Season, Even Ventilate Summer Crops Without Compromising On Plant Protection With Our Fitted Hoops And Mesh Vented Pvc Covers. the 19mm Diameter Galvanised Tubular Steel Hoops Fit Securely Into Our Metal Raised Beds With Supplied Brackets And Screws And Give Either 54cm (21\") Or 104cm (41\") Of Growing Height - The Former For 60cm (2ft) Wide Beds And The Greater Size For 1.2m (4ft) Beds And Upwards. available In Six Size Options, The Hoops Firmly Support The Uv Stabilised Extra Thick, Heavy-duty Pvc Covers, Complete With Full-width Insect-mesh Ventilation For The Summer Months To Keep Pests Out And Let Rain In.the Clear Pvc Traps Heat And Shields Plants From The Elements To Extend The Growing Season And Access Couldnt Be Simpler Thanks To The Large-zipped, Dual-skinned Pvc/insect Mesh Panels That Roll Up And Down On Both Sides. Weve Also Got Fitted Butterfly Net Covers For Complete Raised Bed Plant Protection. designed To Fit Inside Our Standard Metal Raised Bed Sizes: 0.6m X 1.2m (2ft X 4ft); 0.6m X 1.8m (2ft X 6ft); 0.6m X 2.4m (2ft X 8ft); 1.2m X 1.2m (4ft X 4ft); 1.2m X 1.8m (4ft X 6ft): 1.2m X 2.4m (4ft X 8ft)please Note - These Kits Are Designed For Our Standard Metal Raised Beds And Will Not Fit Our Wooden Raised Beds. fitted Hoops And Mesh Vented Pvc Covers System Developed To Fit Our Standard Metal Raised Bedschoose From Hoops And Cover Kit, Hoops Only And Cover Only Optionshoops Are Manufactured From 19mm Diameter Galvanised Tubular Steelmaximum Height Of Hoop An Accommodating 104cm (41\")hoops For 2ft Wide Beds Provide 54cm (21\" Of Growing Height)hoops Are Held Firmly In Position By Brackets Which Screw To The Inside Of The Bed2 Hoops Supplied For 1.2m (4ft) Long Beds And 3 Hoops For 1.8m (6ft) 6 Sizes Of Pvc/mesh Covers Are Availablepvc/mesh Covers Made Specifically To Snugly Fit Hoops And Beds