{"product_id":"wp-dcd-10001330385","title":"Mechanical Balance with Weights No Power Classroom Tray Balance Mechanical Laboratory Scale Tabletop Accurate for Teachers","description":"\u003cp\u003eA classic mechanical balance with weights designed specifically for hands-on physics education and classroom demonstrations. This two-pan scale allows students to measure mass and investigate fundamental density-related experiments with direct visual feedback. The tray balance features two shallow white pans, a central beam, a pointer, and a sturdy green base for stable tabletop placement. Equipped with a separate blue plastic weights box containing metal weights and tweezers, this beam balance offers everything needed for exact manual calibration. This battery-free mechanical balance helps students grasp the physical principles of mass and weight through tactile, interactive learning.\u003c\/p\u003e","brand":"World Products","offers":[{"title":"100G \/ Tray Balance","offer_id":50408711389423,"sku":"dcd-30003779721","price":2.99,"currency_code":"USD","in_stock":true},{"title":"200G \/ Tray Balance","offer_id":50408711422191,"sku":"dcd-30003779722","price":3.19,"currency_code":"USD","in_stock":true},{"title":"500G \/ Tray Balance","offer_id":50408711454959,"sku":"dcd-30003779723","price":4.86,"currency_code":"USD","in_stock":true},{"title":"1000G \/ Tray Balance","offer_id":50408711487727,"sku":"dcd-30003779724","price":9.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0807\/5486\/8463\/files\/aa149ddd-8baf-4c76-874c-e0a47e60d63e.jpg?v=1786250731","url":"https:\/\/sendfromchina.ai\/products\/wp-dcd-10001330385","provider":"World Products","version":"1.0","type":"link"}