This exquisite medium umbrella base with patented design and additional wheels provides ultimate versatility outdoors! The simple wheel locks ensure a secure hold for your umbrellas. Perfect for patios, gardens, and pool areas. Secure maximum safety and style for your outdoor space now!, , Product Information, Color: Black, Material: Polypropylene, Rectangular, Suitable pole diameter: 21 - 54 mm, With locking screw, Fillable with up to 40 kg of sand or water