A1 Envelopes - Sample Pack - 3 5/8 x 5 1/8 (for response cards) (21pcs) Pink, Light Blue, Light Yellow, Light Green, Light Gray & Cream envelopes are 70lb paper weight (high quality) / Dark Brown, Silver, Gold & White envelopes are 80lb paper weight (premium quality) / all other colors are 60lb paper weight (standard envelopes) 21 envelopes / 1 of each color: Red, Orange, Yellow, Green, Bright Blue, Purple, Hot Pink, Lime, Twilight Blue, Pink, Light Blue, Light Yellow, Light Green, Light Gray, Light Purple, Dark Brown, Black, White, Cream, Silver & Gold