Minnebaby 5 Point Harness Safety Straps System NIB. This is great for hand me down chairs or refurbishing a wooden highchair- these replacement straps work well for most baby highchairs, strollers or trikes and tricycles. Grows with your baby and suits your needs with 2 Security options- 5 Point harness belt (as is) or you can convert it to a 3-point harness by simply untying 2 detachable shoulder straps. Other features of the system is: