Selecting the correct prize sizes for your toy crane machine is crucial for both profitability and player satisfaction. The ideal prize should be large enough to attract players but small enough to be graspable by the claw. Generally, prizes should measure between 2.5 to 5 inches in any direction. This size range ensures the claw can securely grip the item while making the prize appear valuable to customers.

Consider the claw size and strength when choosing prizes. The prize should be slightly smaller than the claw's open span to allow for proper gripping. Avoid prizes with slippery surfaces or irregular shapes that might easily slip from the claw. Test different prize sizes in your machine to find the optimal balance between difficulty and winnability.

Medium-sized plush toys and small electronic gadgets often work well. The prize-to-machine ratio is important too - your machine should look generously stocked without being overcrowded. Regularly rotate prize sizes and types to maintain player interest. Remember that properly sized prizes not only increase play frequency but also reduce maintenance issues caused by jammed items.