A soft nylon mesh which provides a lofty, yet accessible multi-dimensional perch. Create an arboreal resting place on the slippery sides of your glass or acrylic terrarium. Use together with Zoo Meds Lizard Ladder for easier access and more living space for your animals. Item Number: SP-20 Size: LG Dimension: 17.5" L Item Number: SP-21 Size: SM Dimension: 14.2" L