How many kids fit at once?

The 400 lb limit covers roughly four to six young children depending on size. Keep jumpers similar in age and size, and let adults supervise.

Does it need to be staked down?

Yes. Anchor it on level grass or a padded surface and keep the blower running while it is in use. Never set it up near a driveway, pool or fence.

Yes, the blower comes with the castle. You still need an outdoor-rated extension cord and a nearby outlet.

The 400 lb limit technically allows one adult, but the fabric walls and open design are made for children. Treat it as a kids' bouncer.

Expect several minutes to unroll, inflate, stake and check it, and similar time to dry and pack it away. It is not a leave-out-all-summer structure.

Flat grass is best. Avoid concrete and slopes, and keep the blower intake clear of debris.

4 stores we checked sell it, including Best Buy, Lowe's, Newegg, The Home Depot.

At Lowe's, for $329.99, as of our latest check.

$329.99at Lowe'sChecked 4 h ago

Compared across 4 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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