Lollipop - Freestanding Signs: Our Freestanding Lollipop signs consist of a 450mm diameter ACM Circular Sign Panel mounted onto a 450 x 450mm square heavy duty polypropylene base. Perfect for either indoor or outdoor use around your school the heavy duty base has a 20L capacity which when filled with either sand or water gives you an approx 22kg weighted base. The polypropylene base is designed to be filled with sand or water and has a useful carrying handle for easy transportation and portability. The sign panel is printed in full colour directly onto a durable 3mm thick ACM panel and has a clear Anti-Graffiti protective face film fitted as standard.