Terms of sale

Effective October 17, 2026

These terms apply to every purchase from smartshelves.store, operated by Central Engineering LLC. By placing an order you agree to them.

Orders and pricing

Prices are in U.S. dollars and may change without notice; the price shown at checkout is the price you pay. Smart Shelves kits are priced per machine kit plus a flat $19.99 shipping charge per order to the lower 48. Machine prices are manufacturer suggested retail prices, less $200 per cooler bought with its Smart Shelves kit in the same order, with freight of $200 per machine ($300 for the Ultra 1200) charged at checkout. Sales tax is added at checkout where required. If a price was listed in error we will tell you before shipping and you may cancel for a full refund.

Payment

Payment is processed by Stripe. There are no processing fees: card, Apple Pay, Google Pay, Affirm, Klarna and bank transfer (ACH) all pay the price shown. Financing through Affirm or Klarna is a separate agreement between you and that provider, subject to their approval and terms. Bank transfer orders ship once the transfer clears.

Shipping and risk of loss

Shipping terms, delivery inspection and freight claims are described on the shipping page; delivery dates are estimates, and kits are currently on a short backorder. Risk of loss passes to you on delivery; that is why we ask you to inspect freight before signing.

Compatibility

Smart Shelves kits are made for the specific cooler model named on the listing. HAHA and other brand names identify compatibility only; Central Engineering is not affiliated with those manufacturers. Installing a kit does not modify the cooler cabinet, but check your cooler’s warranty terms if you have concerns.

Use and safety

Open one shelf at a time, as the OE-L lock enforces, apply the supplied safety stickers to the machine, and never load a tray beyond the cooler manufacturer’s shelf rating. The kit is designed to keep the cooler stable during loading when used as instructed; Central Engineering is not responsible for damage or injury resulting from modified kits, defeated locks or loading practices contrary to the instructions.

Returns and warranty

Products may be returned within 30 days of delivery as described on the shipping and returns page; return shipping is paid by the buyer. Smart Shelves kits are sold as is, without any warranty, express or implied, to the extent allowed by law. HAHA machines are covered by the manufacturer’s own warranty, which is between you and HAHA Vending. Our liability for any claim is limited to the amount you paid for the product concerned.

Contact

Central Engineering LLC · centralengineering2026@gmail.com