Child's car seat and booster seat (Starkholmes DE4)

Graco car seat states it's suitable for child 15-36 kg. Was used on and off for a number of years. Little Tikes booster seat 22-36kg, for child over 125cms. It's much newer and not often used in 3 years since purchase. Both in good condition, no damage, a bit dusty. Covers are washable and frame is wipeable. Would prefer to gift them together, but would consider splitting if no-one will take both.