Feature: 1. 360 degree adjustable for rotating, tilting and locking. 2. You can adjust the angle to any suitable position. 3. Durable nylon frame, crash resistant, non-rusting, strong and wear-resistant. 4. Pure copper thread helps the screw be firmly locked without unfastening. 5. Easy to install on any fishing chair. 6. Apply for fishing fort, fishing tank, pole-fishing platform,fishing chair, fishing box and umbrella and so on. Specification: Features: 360 degree adjustable for rotating, tilting and locking. You can adjust the angle to any suitable position. nylon frame, crash resistant, non-rusting, strong and wear-resistant. Pure copper thread helps the screw be firmly locked without unfastening. Easy to install on any fishing chair. Apply for fishing fort, fishing tank, pole-fishing platform,fishing chair, fishing box and umbrella and so on. Specifications: Material: Nylon Ball Color: Black Product Size: 15 * 6 cm / 5.9 * 2.4 in Product Weight: 120 g / 4.2 oz Package List: 1 * Holder Package List: 1 * Holder