Party planners, listen up! These Decojoy balloon weights are exactly what you need to keep your balloon decorations from flying away. Each weight holds up to 8.8 pounds of water - that's serious anchoring power for balloon arches, columns, and centerpieces. Made from thick PVC with high-frequency heat sealing, they're completely waterproof and won't leak. The silver color looks classy and works with any party theme. The center hole is about 1.6 inches across, perfect for securing balloon sticks securely. What's really clever is how easy they are to use - just fill through the 1.2-inch water inlet, pop in your balloon arrangement, and you're done. When the party's over, empty them out and they fold flat for storage. At only 0.5 ounces when empty, they're super lightweight to carry to your event venue. Works great for birthdays, weddings, baby showers, holidays - basically any celebration where you want balloon decorations that actually stay put. No more watching your beautiful balloon arch slowly tilt over as the day goes on. For the price of two heavy-duty weights, this is such a smart investment if you decorate with balloons regularly.