Features. Our products are assured for reliability and durability which has high quality and standard. Our products are designed with the up to date designs and creativity. KeyKrafter number takes place of the listed Traditional EZ numbers for the KeyKrafter program. Pack of 4Specifications. Key Type House/Office. Key Krafter Number 221. Traditional EZ Number RO5. Material Brass. Cross Reference Sheet AceNet Growth Opportunities Keys Cross References. Country of Origin United States. Weight 0.1 lbs