SodaPup Four Seasons Design eTray Enrichment Slow Feeder Tray for Dogs Brand_Wholesomes SIZE CHART Size Neck (A) Eicosapentaenoic Acid SIZE CHART Size Neck (A) Chest (B) Back (C)* X Small 14 in (36 cm) 15 20 in (38 51 cm) 10 in (25 cm) Small 16 in (41 cm) 19 27 in (48 69 cm) 13 in (33 cm) Medium 19 in (48 cm) 26 35 in (66 89 cm) 20 in (51 cm) Large 23 in (58 cm) 30 39 in (76 99 cm) 23 in (58 cm) X Large 26 in (66 cm) 35 45 in (89 114 cm) 27 in (69 cm) * Back coverage (C) will vary and make cleaning up after them a true breeze may help prevent bloat The Four Seasons eTray design features different heights and depths and opening sizes imitating more natural eating conditions and putting your dogs natural foraging instincts to the test