【Note 1】:Product Size: Replacement Stopper for the Stanley Cup Size approx: 2.08 x 1.29 x 1.08 in (See Figure 2) (It's perfect for The Stanley A-944DH, A945DH Replaces Stopper) In order to use it correctly and avoid purchase errors please check whether the product matches your thermos flask at the time of purchase 【Note 2】: Please checking your bottle's base for the two-digit year stamp before '02 or presence of A944-DH/A945-DH to confirm suitability. Fits Stanley Aladdin Thermos Bottle or Stanley Vacuum Bottle Purchased Before 2002, Replacement Part stanley thermos Stopper: ACP0060-632, Replace stanley aladdin thermos a-944dh, a945dh. Refer to the base of Stanley bottle for replacement part number. Enhanced Sealing: Equipped with a single gasket positioned at the center of the stopper, preventing leaks and maintaining temperature retention. Fits Stanley Aladdin Thermos models: A-944DH, A945DH Replaces Stopper. Parts Shop Replacement Thermos Stopper for Stanley Aladdin Vacuum Insulated Small Mouth Bottle ACP0060-632 Bottles Stopper #13B pre-2002 Production Replaces Parts No A-944DH A945DH