Winter Protection: This Skimmer Plug serves as a winter cover, safeguarding your skimmer from freezing temperatures and debris, eliminating concerns about winter damage or drainage issuesEasy Installation: Designed with a handle, the wide mouth above ground pool skimmer winter plug is simple to install and remove. Just gently bend downwards and insert the frost protection cover into the skimmer openingEffective: The foam on the above ground pool skimmer cover expands and tightens to create a barrier that prevents water entry, thus protecting the skimmer from potential damageDetails: Made from EVA ABS plastic for durability, this Pool Skimmer Cover Plate measures 12.20inchx6.10inchx1.06inch and comes as a complete set for your convenienceCold Resistance: Skimmer Guard Plug offers cold resistance down to -20C, ensuring reliable sealing performance and effectiveness even in harsh winter conditions Specification: 31cmx15.5cmx2.7cm/12.20inchx6.10inchx1.06inch Package Includes: 1 SetSkimmer Plug Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.