High quality: durable metal plate with powder-coated finish provides the best weather and sun protection outside
Versatile: adjustable holder perfectly fits 1.3"(32mm), 1.5"(38mm) and 1.9"(48mm) diameter umbrella pole, suits most 7-11 feet market parasol umbrellas through a table or freestanding for porch and yard
Anti-Slip Pad: 4 non-slip footpads can protect the base surface from scratches
Tightening Knob: 2 handy Knobs can lock and secure the umbrella to the base stably
Easy Step: all necessary accessories are included, follow instruction to finish the installation without additional tools