Seller: katapata2010 (9,726) 100%, Location: Enfield, North Carolina, Ships to: Worldwide, Item: 131763133931 50 BLUE MEDIUM TWIST BULBSfor Modern or Vintage Ceramic Christmas Trees Bulb Head Size: 5/8" Long x 3/8" WideStem Size: 7/16" Long x 3/16" DiameterTotal Size: 1 1/16" Long with a 3/16" Stem DiameterPlease reference ruler pics in photos above, also, to confirm these are the size you need Always happy to combine shipping ~For my "Buy It Now" listings, click "Add to Cart" as you shop rather than clicking on "Buy It Now". When you are finished shopping click on the shopping cart icon to go to Checkout. Click "Request Total from Seller" at checkout and I will send you one invoice with combined shipping for all of your items. If you are bidding on more than one of my "auction" items, do not pay as the auctions end but wait until they have all ended and I will then send you one combined shipping invoice for all of your purchases. Replacement lights work great in both modern and vintage ceramic trees as long as the stem diameter of the bulb is the same measurement as the hole(s) diameter in your tree or craft. Visit our store for a wide selection of ALL bulb shapes/sizes/colors, stars & personally-designed tree light sets ~http://stores.ebay.com/Katapatas Please message me with any questions. Thanks and I appreciate your business. Condition: New, Featured Refinements: Vintage Ceramic Christmas Tree, Color:: Blue, Product:: Medium Twist Bulbs, Craft:: Ceramic Christmas Tree, Modified Item: No, Country/Region of Manufacture: Unknown, Brand: Unknown, Material:: Plastic, Stem Diameter:: 3/16", Total Bulb Height/Length:: 1 1/16"