gaisten glass hummingbird feeder, 36oz large hummingbird feeders for outdoors hanging, leakproof hand blown hummingbird feeder never fade, attract more birds, 4 in 1 garden backyard decorative(yellow) gaisten special leak proof design: applying a more robust rubber o ring gasket that fits over the bottom for a tighter leak-proof seal, which features a better thermal shrinkage effect, full of elasticity, and resilience, including expansion strength, elongation. you can assemble and disassemble the whole feeder parts for cleaning.