I bought this once to deter pigeons, but they haven't appeared recently, so I no longer need it and am selling it. Brand: ISOTRONIC Color: Black Style: Basic Product Dimensions: 45 cm length x 4.5 cm width x 4 cm height Original Price: 3080 yen You can place it on the handrails of balconies, etc., to prevent birds from perching or landing. Spike Length: 4cm Each piece measures 18 inches wide x 1.8 inches deep. Set of 12. Can be cut to size. Fix with screws, double-sided tape, or cable ties. Ideal for places where birds perch, such as roofs, balconies, and outdoor units. Also protects against pests other than birds.