Welcome to WAIDFU StoreBoys Suit 6-Piece Formal Suits Set Lightweight Style Kids BlazerSize Suggestion For Your Reference* Size 2 (Weight: 27~33 lb, Height:37~39 inch)* Size 3 (Weight: 34~41 lb, Height:40~44 inch)* Size 4 (Weight: 42~52 lb, Height:45~47 inch)* Size 5 (Weight: 53~63 lb, Height:48~51 inch)* Size 6 (Weight: 64~75 lb, Height:52~55 inch)* Size 7 (Weight: 76~82 lb, Height:56~59 inch)* Size 8 (Weight: 83~92 lb, Height:60~63 inch)* Size 9 (Weight: 93~101 lb, Height:64~67 inch)* Size 10 (Weight: 102~110 lb, Height:68~71 inch)Package Included: Jacket*1+ Vest*1+ Pant*1 + Shirt*1+ Bow Tie*1+ Brooch*1.Delivery:We will ship out your orders within 7 business days by E-packet or other commercial post services. We have Standard Shipping service and Expedited shipping to choose from. About Standard Shipping service, the packages will usually take about 7-15 business days to be delivered to you.About Expedited shipping, the packages will usually take about 4-6 business days to be delivered to you.Tips:1. Please allow 1-3cm differences due to manual measurement. 2. Please allow little color difference due to different computers' displayers, camera, or light environments.If the child at the top of the size range, consider moving up a size. Chubby or tall also pls consider moving up a size to best fit. Thank you.