Type: Window Tool Jamb Stretchers. 1 Set Window Tool Jamb Stretchers （As Picture Show）. For Vinyl Jamb Stretcher Only. Material: 6061 Aluminum Alloy, Bolts Made Of 304 Stainless Steel. Durable Construction: Made from high-quality 6061 Aluminum Alloy, Bolts Made Of 304 Stainless Steel for long-lasting use and strength.
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