{"sku":"SP-HAND-GRIP","name":"Adjustable Hand Grip Strengthener (10-60kg)","category":"sports","subcategory":"fitness","brand":"Generic Premium","description":"Adjustable hand grip strengthener. 10-60kg resistance range. Digital counter tracks reps. Non-slip padded handles. Spring steel construction. Forearm, grip, and finger training. For rehab, climbing, sports, guitarists.","specs":{"resistance_kg":"10-60 adjustable","counter":"Digital","material":"Spring Steel + ABS + Foam","non_slip_handle":"Yes","purpose":"Grip, Forearm, Finger strength"},"price":"$12.99","price_cents":1299,"in_stock":true,"stock":400,"weight_grams":250,"origin":"CN","return_rate_pct":0.8,"avg_rating":4.3,"total_orders":6200,"tags":["hand-grip","strength-training","adjustable","rehab"]}