Compatible with most Oster blender models. The Better Chef 6 piece Complete 59 Oz Square Blender Glass Jar Replacement Kit will provide you with everything you need to replace that small blender jar. Included in this set is one 59 ounce glass jar, one bottom cap, one rubber gasket, one blender blade, one lid, and one filler cap so you have everything you need to make the swap. This 6 piece kit is compatible with most Oster blender models. Upgrade your home blender for bigger and better creations! Includes One 59 fl. Oz. Replacement kit (9.5″ x 6″ x 6″ – 3.5 lbs.) with One Glass Jar, One Bottom Cap, One Rubber Gasket, One Blender Blade, One Lid, and One Filler Cap The extra-large capacity gives you the space to make better smoothies, milkshakes, sauces, soups, or other treats!