●Trim Daddy Trellis System Support Kits are designed to be the perfect partner to your grow setup. Our kits are customized to work specifically with industry-grade growing trays to protect your plants as they grow. We include one set of extension poles in each kit for you to extend the kit over the lifecycle of your plants. ●Why use Trim Daddy Trellis System Support Kits? Keeps heavy plants from toppling over, Sets up in minutes, saves on space, Easy canopy management system for growers, The kit can be used on one tray, two trays or more side-by-side , Two adjustable levels, Spreads branches for better ,, Light and transportable , Easier than building from scratch, We include a net in the kit so its usable right out of the box, Adds structure to gardens and indoor / outdoor growing tray setups ●Fits all Square Corner trays including the following: Inside Dimension Botanicare: 3x6 , Inside Dimension Duralastic: 3x6 4x4 4x8 , Hydro Farm Black Flow-n-Grow Low Profile: 2x2 2x4 3x3 | 3x6 4x4 4x8 ●Included in each kit: 4x Corner Mount Clamps to provide a secure base to connect poles to tray, 8 x Poles make by aluminum, 8x Trellis Attachment Hooks to accommodate two adjustable levels of trellis, 16x Fastening Bolts to attach bases to trays and SCROG hooks to the poles ●Trays are NOT included