**No purchase necessary. This promotion is available only to life science professionals 21 years or older in the US (excluding Puerto Rico), Canada, Hong Kong, India, Singapore, Australia & New Zealand who submit a completed request form. Offer is only valid while Handbook supplies last. The estimated value of the Handbook is $19.99 USD. One free gift per person. Cannot be combined with other discounts or promotions. Offer void where prohibited, licensed, or restricted by federal, state, provincial, or local laws or regulation or agency/institutional policy. Other restrictions may apply. By submitting the request form, you warrant that you are not prohibited by employment, contract, or law from accepting a gift from Life Technologies. Life Technologies reserved at its sole discretion to determine the eligibility to receive the special offer.