There are a few things your child needs to be successful in band: All students need a folder for their sheet music, a pencil in class every day (best kept in their folder), and this other equipment, listed by instrument.  All of these supplies can be purchased at local music stores, but the links are here for convenience (so you know what to ask for).

Single Reed instruments (clarinets, saxophones): Reeds –students should be using high quality reeds (either Van Doren Blue Box, or better).  These are worth the extra expense.  Here are some links:

 Clarinet: http://www.wwbw.com/Vandoren-Traditional-Bb-Clarinet-Reeds-462584-i1414709.wwbw

 Bass Clarinet:  http://www.wwbw.com/Vandoren-Traditional-Bass-Clarinet-Reeds-462583-i1143273.wwbw

 Alto Sax: http://www.wwbw.com/Vandoren-Alto-Saxophone-Reeds-462581-i1412684.wwbw

 Tenor Sax: http://www.wwbw.com/Vandoren-Tenor-Saxophone-Reeds-462591-i1143313.wwbw

 Bari Sax: http://www.wwbw.com/Vandoren-Baritone-Saxophone-Reeds-462582-i1143268.wwbw

 
It will ask you what size to purchase if you or your child are unfamiliar with the correct reed size, choose #2 for now.

Trumpets, Baritone Horn, Tuba:

Valve Oil: http://www.wwbw.com/Al-Cass-Fast-Valve--Slide---Key-Oil-420257-i1133383.wwbw

Trombone:

Superslick Slide kit: http://www.wwbw.com/Superslick-Slick-It-Trombone-Kit-420624-i1133704.wwbw

French Horn:

Rotor Oil: http://www.wwbw.com/Superslick-Key-Rotor-Pin-Oiler-420623-i1133703.wwbw

Percussion students (drums and mallets):

Percussionists will not need to provide instruments (the school will supply them because of the size and number of instruments), however, percussionists must purchase their own sticks and mallets.  Here is a great kit to get started: http://www.wwbw.com/Vic-Firth-EP2-Intermediate-Education-Pack-443958-i1137890.wwbw