{"product_id":"gradys-pitching-school-plyo-soft-shell-baseball-training-balls-weights-910g-600g-400g-200g-140g-100g","title":"Grady's Pitching School Baseball Training Ball Plyo Soft Shell Set of 6 Weights 910g 600g 400g 200g 140g 100g","description":"This is a set of 6 training balls of different weights from Grady's pitching school, which is popular in the United States. The weights of the balls are approximately 910, 600, 400, 200, 140, and 100g. Durability Tested: Each ball can withstand being thrown onto a hard, flat surface. Increased speed: When used in conjunction with an effective training program, training has been shown to increase arm speed and improve speed. Storage Bag Included: Includes a storage bag that fits all balls perfectly. Easy to inflate: Each ball includes an air nozzle that can be inflated as needed using a standard needle pump.\n \u003cbr\u003e\u003cbr\u003e \n A set of 6 training balls with different weights. The weights of the balls are approximately 910, 600, 400, 200, 140, and 100g. \u003cbr\u003e\u003cbr\u003e \u003cbr\u003eColor: ‎Weight\u003cbr\u003eType: ‎Baseball\u003cbr\u003ePackage size: ‎25.6 x 17.6 x 8.5 cm; 100 g","brand":"Auto Parts Tokyo","offers":[{"title":"Default","offer_id":48020550680896,"sku":"B09M8H3NC9","price":71.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/2584\/0704\/products\/61JV0bc4GNL._AC_US1200.jpg?v=1710320284","url":"https:\/\/megashopjapan.com\/products\/gradys-pitching-school-plyo-soft-shell-baseball-training-balls-weights-910g-600g-400g-200g-140g-100g","provider":"Mega Shop Japan","version":"1.0","type":"link"}