US Weight Sign Kit - Post and Base (Signs not included). Mount important signs quickly with the US Weight Sign Kit. Ideal for Parking lots, schools, crosswalks, stadiums and wherever Temporary or permanent signage is needed. Available prefilled or fillable options to best fit yor needs. The prefilled base weighs 50lbs. The fillable option can be filled with gravel, sand, or concrete (water should not be used). Easy to use brackets allow for unlimited Sign configurations and Hole patterns Durable, scratch resistant fillable base Signs NOT included.