Features:

• Easy-to-clean polystyrene trays
• Easy-to-read, dual-reading, die-cast beams
• Heavy steel base and precision lever system
• Heavy-duty, rust-resistant understructure
• Weight catacity 130 lbs x 1 oz
• Shipping weight: 33 lbs
• Tray size: 22in H x 14.75in W x 4.50in D
• Beam: pounds-reading, die-cast

See link below for identical mechanical baby scale in kilograms:

 Mechanical Pediatric Scale In Kgs

Manufacturer warranty: 90 days & 1 year parts