Once the kit arrives at your home, heck if it matches the kit number provided to you at the time of purchase. The biological sampling kit that will be delivered to your home contains: Two buccal swabs Two collection vials The return envelope Kit instructions To perform the biological sampling follow this step-by-step simple procedure, detailed also in the kit instructions: Place the unopened swabs and vials on clean, levels surface. Remove one swab from its package and firmly scrape the inside of one cheek while rotating the swab for 45 seconds. Note: do not eat, drink, or chew gum for 60 minutes prior swabbing your cheeks. Open one vial, insert the swab with the tip down, align the black line on the swab to the edge of the vial and snap it off with the swab tip remaining in the vial’s liquid. Note: if the liquid from the vial is spilled, please send in you vial anyway as the sample might still be viable. Use the second swab and vial to repeat the points 2 and 3 on the opposite cheek. Ensure that the cap is securely fastened on both vials. Insert both into the plastic bag and then seal the bag. Place the sealed plastic bag in the return envelope we provided and seal the envelope. Send the envelope with your biological samples. The return postage is prepaid.