General description Product includes 12 pieces of umbrella replacement parts, featuring 2 sets (6 pieces) of umbrella hole rings in 3 sizes: 4.8 cm, 3.8 cm, and 3.3 cm inner diameter (can be assembled). It also includes 4 pieces of 40mm M8 clamping stars and 2 oblique mouth parasol support pipes, ideal for stabilizing and aligning patio umbrella bases. Technical specifications Sizes: 4.8 cm, 3.8 cm, and 3.3 cm inner diameter Material: High-quality plastic and stainless steel Includes: 12 pieces total (6 umbrella hole rings, 4 M8 clamping stars, 2 support pipes) Installation Select the appropriate size of umbrella ring based on the diameter of the umbrella pole Insert the umbrella pole into the base Tighten the M8 star knob to secure the umbrella and prevent slipping Usage Compatible with patio tables, beaches, gardens, balconies, decks, and poolside areas Classic black color matches all outdoor furniture