[Reflective bird deterrent] Utilizes the natural sensitivity of pigeons and other birds to sudden bright light. This product reflects sunlight from multiple angles to deter and discourage birds such as pigeons. The dual-sided, two-tone design helps repel birds that are sensitive to specific colors. [Sound bird deterrent] Incorporates a detachable bell that produces sound when moved by the wind, taking advantage of birds' aversion to sudden noises to help deter small birds including pigeons. [Bird protection] Helps prevent bird collisions with glass, as birds often cannot see transparent surfaces. Ideal for hanging near or on windows to protect birds from accidental impacts. [Wide application] Designed to humanely deter birds without causing harm. Easy and quick to install, suitable for use in gardens, orchards, shops, fishing ports, ponds, parks, swimming pools, fields, and offices. [Product specifications] Constructed from weather-resistant materials, flexible and durable, resistant to damage from strong winds. Suitable for both indoor and outdoor use. Maximum dimensions: 38.5 cm long and 21 cm wide.