UPGRADED - REINFORCED: Perfectly solves the problem of missing springs and shims on the mixing shaft, The mixer attachment is securely locked to the shaft and reduces the wobbling of the mixer attachment and the stainless steel mixing bowl caused by excessive space in the mixing bowl during use. WIDELY USED AND COMPATIBLE: This Quick Install Spring and Washer kit Compatible with for KitchenAid Tilt-head & Bowl-lift mixers from 3.5 Quarts to 7 Quarts! Also for Classic, for Artisan, for Pro-Line. (NOTE!!! Excluding mini models), Product Included 2 Sets of Spring and Washer Kits, 4 Pcs Stand Mixer Attachment Holders. INSTALLATION WAYS: Compared to the for original-closure washers that only fit removable beater shafts up to 2023, the new upgraded kit improves on this shortcoming by making it simple to install without disassembling the mixer by simply rotating the spring and washer. 4-PCS Stand Mixer Attachment Holders: Universal design for mixer attachment organizer compatible with all kinds of kitchen aid mixers accessories with hanging holes, includes for Flex Edge Beater, for Flat Beater, Dough Hooks and Wire Whip. Please note:There is a slight color difference or difference in kind, it does not affect the use, please do not mind, thank you! Colour:As Shown Material:Plastic+Metal Package Contents: 2 Sets * Spring and Washer Kits 4 * Stand Mixer Attachment Holders Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.