● Easy to control the amount of shade you receive with an adjustable canopy● 10 ft x 12 ft large pergola offers roomy activity space● Easy-to-operate sliding device and convenient handles enable you to slide up and down effortlessly● Easy to control the shaded area with lock buckles● Powder-coated metal frame is sturdy and not easy to deform● Lasting polyester fabric is sun-proof drizzle-resistant and CPAI-84 flame-retardant● Large square feet with pre-drilled holes enhance stability● 16 ground nails help you anchor the pergola to grassland● Arched roof reduces the pressure of standing water● Triangle structure provides reliable stability● Post with wood-like surface blends well with outdoor settings Installation guide