The Athena VPDome is the most efficient way to clone. The easy-to-install fabric rack cover holds up to 16 standard clone trays without the need for individual domes. The simple operation streamlines nursery workflow (2-4 hours of monthly labour savings per rack). Uniform and consistent VPD reduces mortality and speeds rooting. Durable construction reduces costly plastic dome replacements. The anti-microbial coating reduces disease vectors. Features: Heavy-Duty Transparent Doors Velcro Straps Sensor Holders Cord Insert Slots Magnetic Seals Foldable Doors Self Fastening Straps Instructions for Use: The VPDome fits perfectly over standard wire racks (48" W x 72" H x 18" D) (122cm W x 183cm H x 46cm D) Install bottom rack cover Place cover over top of rack Close the door with magnetic seals