Squirrel deterrent and visitor protection: sharp edges deter squirrels and raccoons from accessing bird feeders, helping safeguard feeders from unwanted visitors. Weather resistant construction: PVC design withstands outdoor conditions, providing longlasting protection against corrosion and water. Versatile fit and size: 17.72 in x 8.46 in (45 cm x 21.5 cm) square design accommodates various poles and mounting options; suitable for multiple applications. Easy installation: 3.94 in (10 cm) center hole fits 4 x 4 posts and smaller; installs easily without removing the feeder. Use scenarios Protect a feeder mounted on a 4x4 post in a backyard or garden, preventing access by grounddwelling critters while keeping refill and maintenance straightforward. Add to a fence post, shepherd's hook, or porch post to shield hanging or small platform feeders from squirrels and raccoons, even in wet weather. Suitable for multiple configurations where a stable, weatherresistant mounting plate is needed to support various feeder styles without needing to detach the feeder during installation.