https://www.amazon.com/Thermos-Stainless-Ounce-Folding-Spoon/dp/B07F2GR2YP/ref=pd_bxgy_79_img_2/144-3308979-3264129?_encoding=UTF8&pd_rd_i=B01DZQT01U&pd_rd_r=2fb4d830-a76f-11e9-80ff-c1ff0179d65b&pd_rd_w=DujV2&pd_rd_wg=3sc5U&pf_rd_p=a2006322-0bc0-4db9-a08e-d168c18ce6f0&pf_rd_r=2P6F31EV9SR3AJSMTSSR&refRID=2P6F31EV9SR3AJSMTSSR&th=1
保温效果非常好