Comparison : Item # M201614, 20" x 16" x 1/4" Jumbo Fold Over Mailers
Item # M20161, 20" x 16" x 1" Jumbo Fold Over Mailers
Item # M302214, 30" x 22 1/2" x 1/4" Jumbo Fold Over Mailers
Item # M30221, 30" x 22 1/2" x 1" Jumbo Fold Over Mailers
Item # M362414, 36" x 24" x 1/4" Jumbo Fold Over Mailers