Ijust looked up the instruction for seat height, basically, the heightshould be set where baby can touch the bottom with a flat foot using astraight leg.  For more info, see page 19 of the instruction booklet.

http://www.gracobaby.com/assets/pdfs/instructions/ISPE020AA.pdf page 19.



















沒說清楚，我記得會站之前應該是可以踮腳站，不過不能讓他自己支撐自己。