Flower pot cork lids crafted from soft wood provide natural ventilation for hydroponic growing. The hollow vase lid design with center hole secures plant stems for effortless propagation. Use these cork stoppers for hydroponic plant systems or glass planter jars to enhance small indoor gardens, DIY hydroponics, or floral arrangements. Features -Color:Brown -Material:Wood -Size:8.50X8.50X1.80cm/3.34X3.34X0.71in -Hole diameter: 3cm -Suitable for hydroponic planters: hydroponic cork lids with center holes are designed to fit glass planter jars, terrariums, and hydroponic growing vases for efficient plant propagation -Center hole design advantage: the plant corks with a hollow center allow easy insertion of stems, providing support and simplifying hydroponic operations for all your water grown plants -Natural material: crafted from wood cork, these hydroponic vase lids promote natural air circulation in your flower jars for thriving growth -Wide application: cork stoppers work perfectly for hydroponic flower pots, garden jars, canning jars, and mason jars, offering replacement cork lids for various vessel types -Reusable convenience: cork hydroponic lids are easy to clean, reusable and an essential diy hydroponics cork stopper for sustainable home gardening projects Package list: 8 x hydroponic vase lids