Check the listing for details. Cast Valve - Hanayama Metal Puzzle. Condition: New. Listed at 16.99 USD. Cast Valve - Hanayama Metal Puzzle Product Description: Three pieces that combine to form your "valve"! The hint of release is 6 corners. Try to understand the mechanism of the invisible maze by rotating each inner piece. Enjoy the newest puzzle from the Hanayama Cast Puzzle / Huzzle line!Designed by Vesa Timonen. Approximate Diamentions: 1.8" x 1.7" x 0.6" Difficulty Level (1-5): 4 Hard Solution or Instructions Available. Return Policy Merchandise may be returned for a full refund excluding shipping charges. Merchandise must be returned in its original packaging and in unused and sealed condition and packed sufficiently to avoid being damaged in shipping. Please contact us for a Return Authorization number (RMA number)and return instructions, before returning the merchandise. Shipping Policy We can combine items for discounted shipping, please make sure you are purchasing all items on the same cart and send us a request for total, we'll combine the product price and shipping cost. Payment Policy We accept PayPal payment. Orders will be shipped once payment is received.