An oral care tool comprising: an oral care tool head comprising: first and second arms for supporting dental floss therebetween, and a first interlocking means having a shaft, wherein the first arm extends from a first end of the first interlocking means and the second arm extends from a second end of the first interlocking means; a handle comprising second interlocking means , wherein the second interlocking means is configured to be complementary to the first interlocking means and comprises a cylinder whose internal cavity is configured to receive the first interlocking means of the oral care tool head, wherein the cylinder comprises a longitudinal gap along its length, the gap being dimensioned to allow at least one of the arms of the oral care tool head to slide through the second interlocking means along the gap, and dimensioned so that the shaft of the interlocking means cannot pass through the gap; wherein the first interlocking means is configured to detachably secure the oral care tool head to the second interlocking means; wherein the first interlocking means is configured such that, in use, when the first interlocking means is in a slidably engaged configuration with the second interlocking means, upon rotation of the oral care tool head, the arms are rotated out of alignment with the gap such that they form an abutting surface against the end side walls of the second interlocking means preventing further lateral sliding of the first interlocking means with respect to the second interlocking means; wherein an internal surface of the cylinder is configured such that, in use when the first interlocking means is inserted in the second interlocking means, upon rotation of the first interlocking means with respect to the second interlocking means, the first interlocking means is fixedly engagable in one of a plurality of locked positions. an oral care tool head comprising: first and second arms for supporting dental floss therebetween, and a first interlocking means having a shaft, wherein the first arm extends from a first end of the first interlocking means and the second arm extends from a second end of the first interlocking means; a handle comprising second interlocking means , wherein the second interlocking means is configured to be complementary to the first interlocking means and comprises a cylinder whose internal cavity is configured to receive the first interlocking means of the oral care tool head, wherein the cylinder comprises a longitudinal gap along its length, the gap being dimensioned to allow at least one of the arms of the oral care tool head to slide through the second interlocking means along the gap, and dimensioned so that the shaft of the interlocking means cannot pass through the gap; wherein the first interlocking means is configured to detachably secure the oral care tool head to the second interlocking means; wherein the first interlocking means is configured such that, in use, when the first interlocking means is in a slidably engaged configuration with the second interlocking means, upon rotation of the oral care tool head, the arms are rotated out of alignment with the gap such that they form an abutting surface against the end side walls of the second interlocking means preventing further lateral sliding of the first interlocking means with respect to the second interlocking means; wherein an internal surface of the cylinder is configured such that, in use when the first interlocking means is inserted in the second interlocking means, upon rotation of the first interlocking means with respect to the second interlocking means, the first interlocking means is fixedly engagable in one of a plurality of locked positions. <EOS>