Specifications: You can quickly built climbing plant supports and greenhouse by using this A clip pillar shelf. It is designed to fix plant bracket and help vine plants to wrap and grow. This pillar shelf is widely used on fasten connection of greenhouse film support, shading net pole connector, climbing vine support. Item Name: Pillar Shelf Material: PP, Metal Fixing Buckle Quantity: 6Pcs Features: A Clip, Easy to Install, Durable Size Details: 8mm: Diameter: 8mm/0.31", Single Piece: 4cm x 6.5cm x 0.8cm/1.57" x 2.56" x 0.31" (Approx.) 11mm: Diameter: 11mm/0.43", Single Piece: 4.5cm x 7cm x 0.8cm/1.77" x 2.76" x 0.31" (Approx.) 16mm: Diameter: 16mm/0.63", Single Piece: 5cm x 7.5cm x 0.8cm/1.97" x 2.95" x 0.31" (Approx.) 20mm: Diameter: 20mm/0.79", Single Piece: 6cm x 8cm x 1.2cm/2.36" x 3.15" x 0.47" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 6 x Pillar Shelf (Others Not Included)