Most models use a fillable weighted base you fill with water or sand for stability. Some also add suction cups or non-slip base designs to improve grip on floors, plus built-in handles to make the base easier to carry.
Listings typically target young children, with suggested ages starting around 3 years and up. Different models aim at different age groups—examples shown in listings include 3+, 5–10 years, and 8+ depending on the product.
Capacity varies by model. Example capacities from listings include up to 28 L of water (or 70.5 lb of sand), others specify fills like 12 lb water / 18 lb sand, and some list roughly 15 lb for stability. Check the specific product listing for the exact fill volume for that model.
Most listings describe them as suitable for both indoor and outdoor use. Bases or feet may include suction cups or non-slip pads, and specific models are advertised to work on lawns, wood floors, tile, carpet, and other common surfaces.
Adjustable heights commonly start in the low 30-inch range and can extend up to about 62 inches on some models. Example listing ranges include 32"–48.5", 33"–51", 33.5"–51", 37.5"–49.5", and multi-step adjustments up to 62".