The fillable lawn rollers in this set come in the low-to-mid gallon range — specifically 12‑gallon and 16‑gallon models.
These rollers use a tightly sealed inlet to reduce leakage and include a drain or quick‑drain plug so you can empty them easily after use.
The manual aerators shown have between 27 and 33 spikes, with spike length listed as about 1.3 inches.
The aerator drums list fill capacities of 6.8 L and 5.5 L, and they are designed to be filled with sand or stone to increase weight for deeper aeration.
The coop scooper has a wide 15‑inch head with a fine, tightly spaced mesh to let clean sand fall through while retaining droppings, and a powder‑coated alloy finish that resists rust.
The rollers share similar overall sizes — roughly 21 inches long, 43–44 inches high, and 13–16 inches wide — with weights in the low tens of pounds (about 20.5–27.5 lb).